UBUNTU-CVE-2016-3191

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    UBUNTU-CVE-2016-3191

    Published: 17 Mar 2016Last Modified: 22 Apr 2026
    Upstream:
    CVE-2016-3191
    Aliases:
    USN-2943-1

    Summary:

    Details: The compile_branch function in pcre_compile.c in PCRE 8.x before 8.39 and pcre2_compile.c in PCRE2 before 10.22 mishandles patterns containing an (*ACCEPT) substring in conjunction with nested parentheses, which allows remote attackers to execute arbitrary code or cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror, aka ZDI-CAN-3542.

    References: https://ubuntu.com/security/CVE-2016-3191, https://ubuntu.com/security/notices/USN-2943-1, https://www.cve.org/CVERecord?id=CVE-2016-3191

    Affected packages

    Package

    Name: pcre3

    Purl: pkg:deb/ubuntu/pcre3@1:8.31-2ubuntu2.2?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:8.31-2ubuntu2.2

    Affected versions

    1:8.31-2

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High